An interesting little look into the future. Tucker's death makes more sense this way and isn't so forced.
You've actually got me thinking how I would make TATV different (ie watchable). I'd have had it as a two-parter, focused on the ENT crew (so no fat Riker or old Troi). The plot would go from 2161 and the beginning of the Federation, to several times throughout the Romulan War and how it brought about the UFP.